Turbine-motor.



No. 748,228. PATENTED DEC, 29, 1903.

- B. STEVENS.

TURBINE MOTOR.

APPLIUATION FILED JULY 20,1903. N0 MODEL. 2 SHEETS-SHEET 1.

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No; 748,228. PATENTED DEC. 29, 1903.. B. STEVENS.

TURBINE MOTOR.

APPLICATION FILED JULY 20, 1903.

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NITED STATES Patented December 29, 1903.

BYRON STEVENS, OF SOHOHARIE, NEW YORK.

TURBINE-MOTOR.

A SPECIFICATION forming part of Letters Patent No. 748,228, datedDecember 29, 1903.

Application filed July 20, 1903- Serial No. 166,280. (No model.)

and has particular reference to such motors employing a motive powerwhich is adapted to be used expansively.

To illustrate the invention, I have embodied the same in a motor havinga main shaft extending through its central portion, the easing thereofbeing divided into three principal portions, one of which, in the formof a chamber, incloses a main gear splined to the shaft,

engaging with a plurality of pinions each upon independent shafts, whichextends into a small chamber and supports therein a turbinewheelcarrying a plurality of cups or blades. There is an inlet and an outletfor the steam joined to a circular passage which connects with theblades one side of each turbinewheel, in sem'a'tim preferably, theinlet-passage being of the lesser area which gradually enlarges towardthe outlet, so that steam entering with a certain high pressure andvolume gradually expands as it reaches the successiveturbine-wheels,whose blades are made of increasingly larger area tocorrespond with the area of the passage at the points at which they areplaced. The increased area of the steam-passage may be radially with theshafts of the turbine-wheels or of the main shaft, or it may be in aparallel direction thereto. In the present embodiment of the invention Ihave represented the increasing area of the steam-passage disposed in adirection parallel with the shafts of the turbine-wheels or of the mainshaft, all of the turbine-wheels being of the same diameter.

Reference is made to the accompanying drawings, which are somewhatschematic, in order to more fully illustrate the invention, a form ofconstruction being represented which would not in all probability becarried out in commercial use.

Figure 1 is a side elevation having parts broken away to more fully showthe internal operation. Fig. 2 is an end elevation partly in section.Fig. 3 is a development of the steam-passage.

- In the drawings, 1, 2, and 3 represent three sections of the machinebolted to each other, of which 1 is a side or cover for the section 2,which consists of a chamber G, with the rim w and the wall or partitionn, while the section 3, forming the main body of the machine, is securedto the section 2 by the ears 5 and 6, attached to the respectivesections at points on their peripheries, through which extend the bolts7. The cover or section 1 is secured to the section 2 by the bolts 4,which, if desired, may extend through wall or. into the solid portionsof the section 3. The machine is preferably circular in side elevationand rests upon the extended feet A A, through which pass the bolts (1 a'to a suitable foundation.

A main shaft L extends through the sections central thereof and isprovided with the collar m on one end, which bears upon a hub upon theface of the section I, while upon the opposite end is a pulley N, bywhich secondary motion is conveyed from the machine. Gearing or otheranalogous and suitable devices may be substituted for the pulley. A maingear H is splined upon the shaft L and rotates in the chamber G.

At proper intervals around the outer face of the main gear H are locatedthe pinions J, affixed to suitable shafts, whichhave bearings h and c inthe hubs 0 and wall or partition 02, respectively. These pinions meshwith the main gear and are preferably of one diameter. Within thesection 3 is a passage E for entrance and exit of the gas orfluidemployed to impart motion to the motor, and in this description Ishall refer to steam as representing gases having expansion. I haveshown the inlet B and outlet G together upon the same side of the motor,one below the other, but any other arrangement may be adopted, and haverepresented a flange 5 adapted to be joined to anextension D to thesteam-generator. The passage E is circular for the most part, and theinlet and outlet are tangential to its respective ends or terminals. Theshafts bearing the pinions are extended rearwardly and terminate asbearings p in sockets 8 in the section 3, and secured to each shaft is aturbine-wheel F, having a plurality of cups or blades 12, which wheel ispreferably located in a chambere on the outer side of the passage E insuch manner that the steam from the passage may come upon the blades inthe most advantageous manner in seriat'im.

Means are provided for gradually increasing the area of theturbine-wheel blades, which may be efiected by enlarging their diameterand of increasing the thickness of the passage E radially, or, asrepresented, the wheel-blades may be lengthened successively from theinlet to the outlet, the passage E being of course gradually widened, asshown in Fig. 2 and more particularly in Fig. 3, which is a developmentof the passage, the pinions J being in the chamber G and the re spectiveturbine-wheels F in the passage E. The section 1 can be dispensed withand the main gear H and pinions F be upon the outside of the machine, ifdesired. It will be seen that by the invention steam which comes to theinlet B with a certain pressure and volume is permitted to expand and expend its power upon the increasing area of the blades with the samedegree of economy and usefulness that obtains in the systems ofsteam-engines employing a plurality of steamcylinders, and the resultingeffects of the steam-turbine action is greatly increased.

I may employ instead of the maingear-and pinions any such equivalentstherefor as wheels with contiguous friction-surfaces, pulleys with ropesor belts, &c., and the turbinewheels may be located upon the inner sideof the passage E, or a portion of the turbinewheels may be upon theouter side and another portion upon the inner side, as may bedetermined.

What I claim as my invention is- 1. The combination in a turbine-motor,of a main shaft connected with a main wheel, of a plurality of smallerwheels communicating motion to the main wheel, provided with means forcommunicating secondary motion, each small wheel connected with aturbinewheel, with a passage connecting with each ,turbinevwheel insem'cttz'm, having an inlet and an outlet.

2. The combination in a turbine-motor, of a main shaft connected with amain wheel, of a plurality of smaller wheels communicating motion to themain wheel, provided with means for communicating secondary motion, eachsmall wheel connected with a turbinewheel in a chamber, with a passageconnecting with each turbine-wheel chamber in seriati'm, having an inletand an outlet.

3. The combination in a turbine-motor, a main shaft connected with amain gear and provided with means for communicating secondary motion, ofa plurality of pinions engaging the main gear, each pinion connectedwith a turbine-wheel, with a passage communicating with eachturbine-wheel in seriatz'm having an inlet and an outlet.

4. The combination in a turbine-motor, of a main shaft connected with amain gear and provided with means for communicating secondary motion, ofa plurality of pinions engaging the main gear, each pinion connectedwith a turbine-wheel in a chamber, with a passage connecting with eachturbine-wheel chamber in seriatim, having an inlet and an outlet.

5. The combination in a turbine-motor, of a main shaft connected with amain wheel, of a plurality of smaller wheels communicating motion to themain wheel, provided with means for communicating secondary motion, eachsmall Wheel connected with a turbinewheel, with a passage connectingwith each turbine-wheel in seriatt'm whose area increases from its inletto its outlet.

6. The combination in a turbine-motor, of a main shaft connected with amain wheel, a plurality of smaller wheels communicating motion to themain wheel, provided with means for communicating secondary motion, eachsmall wheel connected with a turbinewheel, with a passage connectingwith each turbine-Wheel whose area increases in a direction parallelwith the main shaft from its inlet to its outlet.

7. The combination in a turbine-motor, of a main shaft engaging with amain gear and provided with means for communicating secondary motion, ofa plurality of pinions engaging the main gear, each pinion connectedwith a turbine-wheel with a passage connecting with each turbine-wheelwhose area increases from its inlet to its outlet.

8. The combination in a turbine-motor, of a main shaft engaging with amain gear and provided with means for communicating secondary motion, ofa plurality of pinions engaging the main gear, each pinion connectedwith a turbine-wheel with a passage connecting-with each turbine-wheelwhose area increases in a direction parallel with the main shaft fromits inlet to its outlet.

9. In a turbine-motor, several sections bolted together, a main shaftengaging with a main gear in or upon one of the sections and providedwith means for communicating secondary motion, of a plurality of pinionsmeshing with the main gear and in the same section therewith, eachpinion connected witha turbine-wheel in another section having aplurality of cups, with a passage communieating with each turbine-wheelhaving an inlet and an outlet, as set forth.

10. The combination in a turbine-motor, several sections boltedtogether, a main shaft engaging with a main gear in or upon one of thesections and provided with means for communicating secondary motion, ofa plurality of pinions meshing with the main gear and in the samesection therewith, each pinion connected with a turbine-wheel in anothersection having a plurality of cups, with a pas- ICC IIO

sage communicating with each turbine-wheel Whose area increases from itsinlet to its outlet, as set forth.

11. The combination in a turbine-motor, several sections boltedtogether, a main shaft engaging with a main gear in or upon one of thesections and provided with means for communicating secondary motion, ofa plurality of pinions meshing with the main gear and in the samesection therewith, each pinion connected with a turbine-wheel in anothersection having a plurality of cups, with a passage communicating witheach turbine-wheel whose area increases with the main shaft let, as setforth.

in a direction parallel from its inlet to its out- 12. The combinationin a turbine-motor, of a main shaft, carrying a main Wheel, a passagewhose area increases from its inlet to its outlet, a series ofturbine-wheels adjacent to 20 said passage, with means for conveyingmotion from the turbine-wheels to said main wheel.

In testimony whereof I have signed my name to this specification, in thepresence of 25 two subscribing witnesses, this 17th day of July, 1903.

BYRON STEVENS.

Witnesses:

ESTELLA TAYLOR, WILLIAM WALLACE TAYLOR.

